/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.activiti.explorer.ui.event;

import com.vaadin.ui.Component.Event;
import com.vaadin.ui.Component.Listener;


/**
 * Listener that listens to {@link ConfirmationEvent}s and delegates to
 * confirmed or rejected methods.
 *
 * @author Frederik Heremans
 */
public abstract class ConfirmationEventListener implements Listener {

    private static final long serialVersionUID = 1L;

    public final void componentEvent(Event event) {
        if (event instanceof ConfirmationEvent) {
            ConfirmationEvent ce = (ConfirmationEvent) event;
            if (ce.isConfirmed()) {
                confirmed(ce);
            } else {
                rejected(ce);
            }
        }
    }

    /**
     * Called when confirmation is given.
     */
    protected void confirmed(ConfirmationEvent event) {
    }

    /**
     * Called  when rejection is given.
     */
    protected void rejected(ConfirmationEvent event) {
    }

}
